Web perfecting rotary printing press



H. M. BARBER WEB PERFECTING ROTARY PRINTING PRESS June 8, 1937. 4

Filed Feb. 5, 1936 s Sheets-Sheet 1 Q W amw NM INVENTOR fiiwM & 7924? MN L fi Hum WU l I l I I X I l I I ll wN MN mU EM wh P y; x k m mm E I n n m u n i ,N M m M m w i W m m 1 m M 1 L H w M m m i1 :JFL- u n w E fla m a I in 4 ATTORNEYS June 8, 1937. H. M. BARBER WEB PERFECTING ROTARY PRINTING PRESS Filed'Feb. s, 1956 3 Sheets-Sheet 2 INVENTOR 14 044 w m ATTORN EYS June 8, 1937. H. M. BARBER 2,083,110

WEB PERFECTING ROTARY PRINTING PRESS ile F 1936 3 Sheets-Sheet 3 INVENTOR ATTO R N EYS the other printing unit.

Patented June 8, 1937 2,083,1l'at) WEB PERFECTING ROTARY PRINTDKTG PRES Howard M. Barber,

to C. B. Cottrell & Sons Company,

Pawcatucir, Conn, assigncr Westerly,

R. 11., a corporation of Delaware Application February 3, 1936, Serial No. 62,071

16 Claims.

In high speed web perfecting rotary printing presses where quick drying inks and ink dryin units are employed in connection with the web printing units, it is most important that the several units be so located with respect to one another as to produce the best possible results with a minimum amount of space and a minimum travel ofthe web.

This invention comprises, generally, two printing units and one or two drying units and means for passing the web through said printing and drying units.

This invention more specifically comprises two printing units arranged one above the other and two drying units, one offset from and located at right angles to one of the printing units and the other being located in line with the press beyond Practical embodiments of my invention are represented in the accompanying drawings, in which- I Fig. 1 represents a diagrammatic top plan view of a double two color press embodying my invention, the means for removing the vapors rising from the heating cylinders of the drying units being omitted;

Fig. 2 represents a view of the press; and

Fig. 3 represents a diagrammatic longitudinal vertical section, taken in the plane of the line IIL-III of'Fig. 1, looking in the direction of the arrows.

The first printingunit is herein shown as adapted to print in two colors, the impression *cylinder being by 2, 3 and their inking mechanisms by 5, 5.

The second printing unit for perfecting the web is located above the first printing unit and it is herein shown as adapted for printing in two. colors. the impression cylinder being denoted by 6, the form cylinders by I, .8 and their inking mechanisms by 9, Ill.

The first drying unit is herein shown as comprising a large heating cylinder II and two small cooling cylinders l2, l3. A pipe l4 serves to introduce a heating medium, as steam, into the cylinder l I; and pipes l5, l6 serve to introduce a cooling medium, as water, into the cylinders l2, l3 respectively. This drying unit is offset from and located at right angles to the press.

The second drying unit is herein shown as comprising a large heating cylinder I1 and two small diagrammatic front end cooling cylinders l8, IS. A pipe 20 serves to introduce a' heating medium, as steam, into the cylinder i1; and pipes ii, 22 serve to introduce a cooling medium, as water, into the cylinders l3, l9 respectively. This drying unit is located in line with the press sufli'ciently beyond the second printing unit to eliminate the deleterious effect of the heat from the heating cylinder ll denoted by l, the form cylinders on the inking mechanism ill of the form cylinder 8 of the second printing unit.

A turning bar 23 is provided in position to direct the web laterally from the first printing unit to the first or ofiset drying unit, and a second turning bar 2i is located in position to lead the web back into alinement with the press before the web is passedto the second or perfecting printing unit.

The web may lows:

The unprinted web passes from the web supply roll 25 around guide rolls 23, 21, 28, 29 to and around the impression cylinder i of the first printing unit. From thence the web passes around the turning bar 23 and guide roll til to and around the heating cylinder ii of the first drying unit. From thence the web passes around the'cooling cylinder l2, guide roll 3i cooling cylinder l3 and guide rolls 32, 33, 3d, 3%" to the turning bar 24 for bringing the web back into line with the press.

The web then passes around the guide roll 35 and in engagement withlthe compensating roll 36 to and around the impression cylinder 6 of the second or perfecting printing unit located over the impression cylinder l of the first printing unit. The web then passes over guide rolls 31,38 to and around the heating cylinder ii of the second drying unit located in line with the press beyond the second printing unit. The web then passes around the coolingcylinder i8, guide roll 39, cooling cylinder l9 and guide rolls W, M, 2 downwardly to a predetermined point for further ope gations, as cutting, folding, stacking, etc.

The heating cylinders of the two drying units may be provided with suitable means for removing the vapors which arise from the inks as the web passes around said heating cylinders. In the present instance I have shown blowers 43, Mi with their hoods 45, 46 partially enclosing the heating cylinders II, I! respectively, and the exhaust pipes 41, 48.

It will be understood that the printing units may be driven by well known or approved means, not shown herein, and that the path of the web may be varied to suit different requirements.

- It will also be seen that the path of the web is such that the freshly printed side of the web,

be led through the press as folafter it is dried by each drying unit, will not r sorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of my invention, and hence I do not intend to be limited to the particular embodiments herein shown and described, but

What I claim is:

1. In a wb perfecting rotary printing'press, first and second printing units in line with the press, a drying unit comprising heating and cooling cylinders located out of line with the press, and means for passing the web through said printing and drying units.

2. In a web perfecting rotary printing press, first and second printing units in line with the press, a drying unit comprising heating and cooling cylinders located out of line with the press at right angles thereto, and means for passing the web through said printing and drying units.

3. In a web perfecting rotary printing press, first and second printing units in line "with the press, a drying-unit comprising heating and cooling cylinders located out of line with the press, and means for passing the web successively through the said first printing unit, the drying unit and the second printing unit.

4. In a web perfecting rotary printing press, first and second printing units in line with the press, a drying unit comprising heating and cooling cylinders located out of line with the press at right angles thereto, and means for passing the web successively through the said first printing unit, the drying unit and the second printing unit.

5. In a web perfecting rotary printing press, first and second printing units in line with the press, two drying units, one comprising heating and cooling cylinders located out of line with the press and the other comprising heating and cooling cylinders located in line with the press beyond the second printing unit, and means for passing the web through the said printing and drying units.

6. In a web perfecting rotary printing press, first and second printing unitsin line with the press, two drying units, one comprising heating and cooling cylinders located out of line with the press at right angles thereto and the other comprising heating and cooling cylinders located in line with the press beyond the second printing unit, and means for passing the web through said printing and drying units.

7. In a web perfecting rotary printing press, first and second printing units in line with the press, two drying units, one comprising heating and cooling cylinders located out of line with the press and the other comprising heating and cooling cylinders located in line with the press beyond the second printing unit, and means forpassing the web through said printing and drying units.

8. In a web perfecting rotary printing press, first and second printing units in line with the press, two drying uriits, one comprising heating and coolingcylinders located out of line with the press at right angles thereto and the other comprising heating and cooling cylinders located in line with the press beyond the second printing unit, and means for passing the web through said printing and drying units.

9. In a web perfecting rotary printing press, first and second printing units in line with the press, a drying unit comprising heating and cooling cylinders located out of line with the press, and means for passing the web through said printing and drying units, said means including turning bars around which the web is led on its way to and from the drying unit.

10. In a web perfecting rotary printing press, first and second printing units in line with the press, a drying unit comprising heating and cooling cylinders located out of line with the press at right angles thereto, and means for passing the web through said printing and drying units,

drying units, said means including turning bars I around which the web is led on its way to and from the offset drying unit.

12. In a web perfecting rotary printing press, first and second printing units in line with the press, two drying units, one comprising heating and cooling cylinders located out of line with the press at right angles thereto to one of the printing units and the other comprising heating and cooling cylinders located in line with the press beyond the second printing unit, and means for passing the web through said printing and drying units, said means including turning bars around which the web is led on its way to and from the ofiset drying unit.

13. In a web perfecting rotary printing press, first and second printing units arranged one above the other in line with the press, a drying unit comprising heating and cooling cylinders located out of line with the press, and means for passing the web through said printing and drying units.

14. In a web perfecting rotary printing press, first and second printing units arranged one above the otherin line with the press, a drying unit comprising heating'and cooling cylinders located out of line withthe press at right angles thereto, and means for passing the web through said printing and drying units.

15. Ina web perfecting rotary printing press, first and second printing units arranged one above the other in line with thepress, two drying units, one comprising heating and cooling I cylinders located out of line with the press and the other comprising heating and-cooling cylinders'located in. line with the press beyond the second printing unit, and-means for passing the web through the said printing and drying units.

, 16. In a web perfecting rotary printing press, first and second printing units arranged one.

above the other in line with the press, two drying units, one comprising heating and cooling cylinders located out of line with the press at right angles thereto and the other comprising heating and cooling cylinders located in line with the press beyond .the second printing unit, and means for passi'ng'the web through said" printing and drying units.

HOWARD M. BARBER. 

